Hacker News: durbatuluk

New comment by durbatuluk in "Today I've made the difficult decision to reduce the size of Coinbase by ~14%"

durbatuluk — Wed, 06 May 2026 15:01:45 +0000

The same coinbase where my manager used # of commits as metric for praise. I'm so anxious to see how this will work out

New comment by durbatuluk in "Revisiting Interface Segregation in Go"

durbatuluk — Fri, 07 Nov 2025 19:37:38 +0000

Any method you forget to overwrite from the embed struct gives a false "impression" you can call any method from mockS3. Most of time code inside test will be:

    // embedded S3Client not properly initialized
    mock := mockS3{}
    // somewhere inside the business logic
    s3.UploadReport(...) // surprise

Go is flexible, you can define a complete interface at producer and consumers still can use their own interface only with required methods if they want.

New comment by durbatuluk in "Ask HN: Who wants to be hired? (August 2022)"

durbatuluk — Tue, 02 Aug 2022 01:04:44 +0000

  Location: Brazil
  Remote: yes
  Willing to relocate: yes
  Technologies: Go, PostgreSQL, Mongo, Kafka, AMQP (rabbitmq), gcp, aws, azure, docker, kubernetes, R, QGIS
  Résumé/CV: https://www.linkedin.com/in/dvdscripter/
  Email: dvdscripter(ᵃᵗ)gmail.com

Hi I'm David, self taught developer looking for profissional challenges using GraphQL, gRPC or more low level. Currently staff engineer with great experience in finance (fintechs) and e-commerce.

New comment by durbatuluk in "Adding Optimistic Locking to an API"

durbatuluk — Thu, 26 Aug 2021 18:07:18 +0000

We had similar problem (banking service). Instead of "moving" directly to destination we include a safe account in the middle.

A > safe > B

Safe account is called this way because we don't risk the misuse of money in case of rollback.

New comment by durbatuluk in "Error stack traces in Go with x/xerror"

durbatuluk — Tue, 24 Aug 2021 00:18:42 +0000

github.com/pkg/errors also is a amazing option

New comment by durbatuluk in "Patterns in Confusing Explanations"

durbatuluk — Sat, 21 Aug 2021 14:25:29 +0000

"I think" posts should always handled with care because we have no real evidence, just your "I think". Pattern 12 is often used to promote critical thinking and to shake previous believes. Most teachers want the class to realize something is wrong because this type of realization helps the process of learning (knowledge coming from you, not them).

New comment by durbatuluk in "Generics enabled by default in Go tip"

durbatuluk — Sat, 21 Aug 2021 14:09:50 +0000

I didn't say they're the same. I'm saying people coming from OO complain all the time of lack of generics, inheritance (besides composition) etc.

I teach basic go at my job to help people wanting to migrate, they start the go journey thinking go will do "less" because we don't have all features as their main language. Which reminds me of this phrase:

> 'You cannot reduce the complexity of your problem by increasing the complexity of your language.'

New comment by durbatuluk in "Generics enabled by default in Go tip"

durbatuluk — Sat, 21 Aug 2021 04:46:44 +0000

If you want all features of language X (I doubt we will stop at generics) use language X. Stop trying to make all languages the same.

I work with programmers from OO background (java) and they can't even grasp the utility of functions as value or closures. Every damn "service" has an interface/generated mock and anemic model. They're desperate waiting for generics for go to "complete".

I fear the influx of OO programmers.

New comment by durbatuluk in "Generics enabled by default in Go tip"

durbatuluk — Sat, 21 Aug 2021 04:29:55 +0000

You can do something similar to container package which has a double impl.

Brooks, Wirth and Go

durbatuluk — Sat, 21 Aug 2021 01:11:00 +0000

Article URL: https://www.fredrikholmqvist.com/posts/brooks-wirth-go/

Comments URL: https://news.ycombinator.com/item?id=28253161

Points: 3

# Comments: 0

New comment by durbatuluk in "Go modules have a v2+ problem"

durbatuluk — Thu, 10 Sep 2020 18:01:12 +0000

someone cited kubernetes above

New comment by durbatuluk in "No net insect abundance and diversity declines across US"

durbatuluk — Wed, 12 Aug 2020 17:37:47 +0000

This type of measurement using quantitative data should be interpreted with care. At least here in Brazil most of places where some impact occur have an increase in net diversity and abundance. Many new sp. invade the niche left open by the former community and what you see is a shift of the entire community.

New comment by durbatuluk in "A look at modern PHP"

durbatuluk — Tue, 05 May 2020 16:22:09 +0000

As someone who freelance php and do on-site go coding on daily basis, modern PHP is amazing (symfony/slim is everything I want).

One simple improvement I would love to see is namespace grouping in standard library. Go has all related functions inside some package. Go pls let me do http.notfound = http.StatusNotFound. But in php even with inteli I need to google some function/const name.

New comment by durbatuluk in "The tools and tricks that let Ars Technica function without a physical office"

durbatuluk — Tue, 28 Jan 2020 21:44:26 +0000

This "office feeling" is something still strange to me as someone who like to work with less cloth as possible. Maybe is my background in biology which we did everything in same place, research, sample, drink and eat. In fact working in office make my production drop even with 35h/week.

Maybe is related to programming as hobby turning to job.

Brazilian Police identify and raid pedophile Tor forum members

durbatuluk — Fri, 17 Jan 2020 01:27:47 +0000

Article URL: https://www.nature.com/articles/s41598-019-56704-4.pdf?origin=ppub

Comments URL: https://news.ycombinator.com/item?id=22070999

Points: 3

# Comments: 0

New comment by durbatuluk in "We tested popular web hosting companies and all were easily hacked"

durbatuluk — Sat, 23 Nov 2019 01:57:47 +0000

I think everyone need to remember CORS is a browser-only protection and anything you expose via CORS protected endpoint in reallity has no protection at all. Try cURL reaching any endpoint protected by CORS and you'll see what I mean.

Also browsers automatic sending cookie enable many of these CSRF, consider JWT.

Amazing how PHP is still bitting developers.

New comment by durbatuluk in "K-means clustering using sklearn and Python"

durbatuluk — Fri, 01 Nov 2019 05:03:06 +0000

I should start calling myself a ML expert? I'm 32 year old and most of these "ML algorithms" are called statistics for me. Maybe I'm missing something, where is the LEARNING on k-means? Numerical solutions seems to be on rise now.

Nice write for someone starting, more details about details of algorithm steps would greatly attract more readers.

New comment by durbatuluk in "Dotfile madness"

durbatuluk — Sun, 03 Feb 2019 06:08:22 +0000

Indeed, without env. var we are stuck with ~ "madness"

New comment by durbatuluk in "Dotfile madness"

durbatuluk — Sat, 02 Feb 2019 20:08:03 +0000

TIL I'm using ~ in the wrong way. For me ~ was always the default place for user-level configurations and time taught me to do so: .X* .bash* .vimrc and others.

Than I create my personal folders ~/{src, docs, bin, porn, anime etc}. ~ is for temporary files I'll delete after use like windows users do with their Desktop folder.

Also my ls isn't an alias with -a flag...I'm alone here? :|

Is intolerance towards minorities contagious?

durbatuluk — Thu, 11 Oct 2018 20:51:26 +0000

Article URL: https://www.indiatoday.in/education-today/gk-current-affairs/story/is-intolerance-towards-minorities-contagious-a-study-in-berlin-finds-the-answer-1233989-2018-05-15

Comments URL: https://news.ycombinator.com/item?id=18196936

Points: 1

# Comments: 0